Parameter Identification and Harmonic Analysis for EV Induction Motor Drive Systems

Abstract:

The asynchronous induction motor has obtained more applications in electric vehicle (EV) or hybrid EV drive systems. But, the parameter’s variations of the motor and the harmonics of the voltage source inverter are the two problems influence control performance of EV Drive Systems. Above all, this Paper discusses several main factors which influence harmonics elimination, and then, describes an effective online method for identifying both stator and rotor resistance. The novel method uses Suboptimal Multiple Fading Extended Kalman Filter (SMFEKF) which is a kind of strong tracking filters can accomplish Parameter Identification. An important advantage of this method is that it offers a parallel search way can overcome local optima so as to find the globally optimal solution. Together with harmonic elimination Algorithm which improved the power factor of the drive and weaken the injected low-order harmonics to the induction motor, robust speed control of induction motor can obtained easily. The simulative results confirm that the proposed method has efficiency to EV Drive Systems.

• Periodical: Applied Mechanics and Materials (Volumes 135-136)
• Pages: 667-672
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.135-136.667
• Online since: October 2011
• Authors: Xi Wei Zhou, Gui Ping Wang, Chen Dong Duan, Chun Ling Wu
• Keywords: EV, Harmonic Elimination, Induction Machine, Parameter Identification, SMFEKF

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